Results 141 to 150 of about 7,082 (274)

Two‐step annealing process drives high thermoelectric performance of n‐type Bi2Te3 flexible films

open access: yesResponsive Materials, EarlyView.
To address the relatively low carrier mobility in n‐type Bi2Te3 films prepared by magnetron sputtering, we developed a two‐step annealing process, including in situ and post‐annealing heat treatment. This method yields a high mobility (132.54 cm2 V−1 s−1) and S2σ (14.5 μW cm−1 K−2) by promoting pronounced grain growth and strengthening the preferred ...
Liang‐Cao Yin   +11 more
wiley   +1 more source

Tellurolate: an effective Te-atom transfer reagent to prepare the triad of group 5 metal bis(tellurides). [PDF]

open access: yesChem Sci, 2023
Senthil S   +9 more
europepmc   +1 more source

Opportunities for 2D‐Material‐Based Multifunctional Devices and Systems in Bioinspired Neural Networks

open access: yesSmall, EarlyView.
Bio‐inspired computing offers a route to highly energy‐efficient artificial intelligence. The unique physical properties of two‐dimensional (2D) materials can further enhance such computing approaches. This perspective highlights recent developments in 2D materials‐based neuromorphic devices and discusses future opportunities for integrating such novel
Jin Feng Leong   +9 more
wiley   +1 more source

Single Cu Atom Sites on Co3O4 Activate Interfacial Oxygen for Enhanced Reactivity and Selective Gas Sensing at Low Temperature

open access: yesSmall, EarlyView.
Atomically dispersed Cu sites on Co3O4 nanoparticles establish well‐defined Cu–O–Co interfacial linkages that promote lattice oxygen activation at markedly reduced temperatures. This structural and electronic modulation yields over twenty‐fold higher low‐temperature formaldehyde sensing responses than CuO nanoparticle analogues, enabling selective and ...
Hamin Shin   +7 more
wiley   +1 more source

Chalcogen‐Directed Dual‐Heterointerfaced Bi2Te3/BiSx in N‐Doped Carbon Nanofibers for Sodium Storage

open access: yesSmall, EarlyView.
Dual crystalline/amorphous heterointerfaces of Bi2Te3/BiSx encapsulated in N‐doped porous carbon nanofibers are engineered as an advanced anode for sodium‐ion batteries. The synergistic heterointerfaces and Te vacancies enable fast charge transport, buffer volume expansion, and ensure structural integrity. The anode delivers exceptional rate capability
Jinkai Wang   +11 more
wiley   +1 more source

Metabolic engineering of adipose‐derived stem cell exosomes via arachidonic acid potentiates diabetic wound repair by orchestrating angiogenesis: A multi‐omics guided strategy

open access: yesVIEW, EarlyView.
AA‐Exos promotes angiogenesis and accelerates diabetic wound healing by activating the PI3K/AKT/mTOR pathway. Abstract Diabetic wounds are common and challenging complications of diabetes, characterized by delayed healing and an increased risk of infection.
Yujiao Cai   +7 more
wiley   +1 more source

Characterization of a Portable Computed Tomography System for In Situ Analysis of Wooden Sculptures in Cultural Heritage

open access: yesX-Ray Spectrometry, EarlyView.
ABSTRACT Portable X‐ray computed tomography (portable CT) has become an important tool for the non‐destructive investigation of cultural heritage objects, particularly when in situ analysis is required. This work presents the experimental characterization and application of a transportable cone‐beam CT system designed for the inspection of large and ...
Anderson de Paula   +7 more
wiley   +1 more source

Mobile electromagnetic levitator for time‐resolved in situ X‐ray diffraction studies of high‐temperature phase transformations

open access: yesJournal of Synchrotron Radiation, EarlyView.
A mobile electromagnetic levitator combined with time‐resolved synchrotron X‐ray diffraction enables in situ studies of high‐temperature phase transformations without container‐induced contamination and reveals the first direct observation of metastable phase formation in undercooled Fe–Co alloys.In situ observations of high‐temperature transformations,
Olga Shuleshova   +6 more
wiley   +1 more source

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